MBC’s romance drama In Your Radiant Season finished its run on April 3, 2026, giving viewers a complete answer about the Boston accident that haunted the characters for seven years. The final episode cleared up who really caused the explosion and whether Lee Sung-kyung and Chae Jong-hyeop‘s characters find their way back to each other.
The series kept audiences guessing until the very end about Sunwoo Chan‘s role in the tragedy that killed Kang Hyuk-chan and left deep emotional scars on Song Ha-ran. The finale delivered answers that changed everything viewers thought they knew.
The Boston Accident Truth: Sunwoo Chan Was Never at Fault
The biggest mystery of In Your Radiant Season got solved in the final episode. Cha Soo-jin, played by Lee Joo-yeon, finally told the complete story of what happened in Boston seven years ago.
The accident did not happen because of Sunwoo Chan‘s actions. Kang Hyuk-chan accidentally dropped a lighter while lost in thought, and that caused the explosion. Kang Hyuk-chan died in the blast, and Sunwoo Chan suffered serious injuries that affected his memory and health for years.
For seven years, Sunwoo Chan believed he was responsible. Cha Soo-jin had blamed him for the accident, and his own broken memories made him accept that guilt. The finale showed that he was actually the victim all along.
“It wasn’t your fault.” – Song Ha-ran to Sunwoo Chan
This single line from Song Ha-ran freed Sunwoo Chan from the weight he had carried since the Boston explosion. The truth finally came out through Cha Soo-jin‘s confession, correcting the distorted memories that had controlled the characters’ lives.
Do Ha-ran and Sunwoo Chan Reunite in the Finale?
Yes, Song Ha-ran and Sunwoo Chan reunite in the final episode. After Sunwoo Chan disappeared following his resignation, Song Ha-ran spent time tracking him down. She found his shattered drawing pad and discovered records he left behind.
Through these traces, she learned that she had saved Sunwoo Chan twice during the Boston incident. She also found out about the deep feelings he had kept hidden for a long time. Once she understood the full truth, she went to Gangneung to find him.
Their reunion happened by the seaside. Song Ha-ran embraced him and told him the accident was not his fault. They confirmed their love for each other again while helping each other heal.
After Sunwoo Chan recovered from surgery to remove bone fragments from his injuries, he proposed to her. He asked her to share all the seasons of his life that remain. The drama ended with the couple sharing the four seasons together, completing their journey from winter to spring.
Other Couples Find Their Happy Endings Too
In Your Radiant Season showed love across different generations, and most couples got satisfying resolutions.
Kim Na-na (Lee Mi-sook) and Park Man-jae (Kang Seok-woo) tied the knot, finishing their late-life romance. Their choice to become each other’s support after surgery added a touching moment to the finale.
Song Ha-young (Han Ji-hyun) and Yeon Tae-seok (Kwon Hyuk) became lovers after working through their feelings during a crisis. Song Ha-dam (Oh Ye-joo) and Cha Yu-gyeom (Kim Tae-young) also started new chapters while holding onto both their dreams and their love.
The final episode’s viewership rating came in at 3.1% according to Nielsen Korea. While the numbers stayed modest throughout the run, the show earned praise for its emotional storytelling and the strong performances from Lee Sung-kyung and Chae Jong-hyeop.
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Will There Be In Your Radiant Season 2?
As of now, there is no official announcement about In Your Radiant Season 2. The show was created as a single season with 12 episodes that told a complete story from beginning to end.
The finale wrapped up every major storyline. Sunwoo Chan and Song Ha-ran reunited and got engaged. The truth about the Boston accident came out fully. All the supporting couples found their resolutions. There are no hanging threads that need another season to resolve.
Streaming platforms list the show’s status as “awaiting renewal decision” or “to be determined,” which is standard for recently finished Korean dramas. But given how completely the story ended, a second season seems unlikely.
In Your Radiant Season is available for streaming on Disney+ in select regions. The complete 12-episode season tells the full story of Song Ha-ran and Sunwoo Chan from their painful past to their hopeful future together.
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